Description

In some types of documentation, the semantics of admonitions are
clearly defined (a caution might imply the
possibility of harm to equipment whereas a warning
might imply harm to a person). However, DocBook makes no such
assertions.

Processing expectations

Formatted as a displayed block. Often outputs the generated text
“Caution” or some other visible indication of the type of
admonition, especially if a title is not present.
Sometimes outputs a graphical icon or other symbol as well.